Lyon weather in September 2025

Expect 73°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Lyon in September. Check more long-term weather averages for Lyon in September before you book your next holiday to France in 2025/2026.

  • 73°F maximum daytime temperature in September in Lyon73
    73°F max day temperature
  • 7 hours of sunshine per day
  • 10 days with some rainfall in September in Lyon10
    10 days with some rainfall
  • 54°F minimum night-time temperature in September in Lyon54
    54°F min night temperature
  • 13 hours of daylight per day in September in Lyon13
    13 hours of daylight per day
  • No heat & humidity in September in Lyon0
    No heat & humidity
  • 3.1 inches monthly rainfall in September in Lyon3.1
    3.1 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Lyon5
    5 (Moderate) UV index

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The September weather guide for France (Lyon) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Lyon in September?

Daytime temperatures usually reach 73°F in Lyon in September, falling to 54°F at night.

How sunny is it in Lyon in September?

There are normally 7 hours of bright sunshine each day in Lyon in September - that's 55% of daylight hours.

Does it rain in Lyon in September?

There are usually 10 days with some rain in Lyon in September and the average monthly rainfall is 3.1 inches.

Lyon September sunrise & sunset times

Browse the sunrise and sunset times for Lyon in September 2025. Select a month to view Lyon sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:02 19:18
Monday, 15th September 2025 06:19 18:52
Tuesday, 30th September 2025 06:38 18:22

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